0654 Revision Spinner Revision at random 9702 Revision Spinner Revision at random Field research Bioacoustics Automated acoustic monitoring — bat ultrasound detection on Praslin, the curious failure of BirdNET-Pi in the Seychelles, and what it produces when pointed at the Devon countryside. CP 1919 — the data behind Unknown Pleasures Eighty successive pulses from the first pulsar ever discovered: the data, the physics, and the code to re-plot the most famous figure in astronomy. Adventures All the Tors — Dartmoor in a Year Every named tor on Dartmoor, walked in a single calendar year — raising money for Blood Cancer United. The rule — if Einstein doesn't reach the tor, it doesn't count. Sim Decompression Models Compared An interactive comparison of Bühlmann ZHL-16C, RGBM, VPM-B, and USN decompression models — with adjustable gradient factors and repetitive dive simulation. Database 60+ Demonstrations Hands-on physics demonstrations using everyday objects — designed to spark curiosity and make abstract concepts tangible. Collected over twenty years in classrooms. Field research Diving Scuba diving in the Seychelles — wrecks, reef walls, and granite boulder gardens in the Indian Ocean. Notes on the best sites around Praslin and Mahé. Drake Equation Explorer Einstein's Light Clock Simulation Odometer proof demonstrating how the invariant speed of light dilates moving time. Download Excel Simulations Interactive Excel simulations for exploring physics concepts — collected from various sources, some home-made. Tool Fieldbook A distraction-free markdown notebook with wikilink support, force-directed graph view, and offline operation. Runs entirely in the browser. Problems GCSE Science Challenge Problems 52 weekly science problems across Physics, Biology, and Chemistry — designed to make you think, not just calculate. Hubble Plot Hubble's data plotted, along with a slider to add in more modern data!. Tool Oxbridge Mock Interview Questions Pick a subject and draw a random mix of general and subject-specific questions across 19 disciplines. Designed for mock tutorial-style interviews. A Pearl of Physics Teaching Wisdom 365 things to make you think Database Physics Experiments Database Searchable database of 124 GCSE and A-Level physics practicals — aims, methods, equipment, common errors. Filter by exam board, topic, or required-practical status. Data Physics Experiment Data Student experiment data files from across the A-level physics course — spreadsheets, write-ups, and reports ready to open in Excel or Google Sheets. Skydiving frames of reference They don't fall up... Inertial vs Non-Inertial Frames of Reference Simulating linear train translation and rotating carousel perspectives.